Difference between revisions of "Eriogonum nutans"
Proc. Amer. Acad. Arts 8: 181. 1870.
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Revision as of 23:20, 13 August 2020
Herbs, spreading to erect, annual, 0.5–3 dm, glandular or glabrous, occasionally glaucous, greenish, grayish, or reddish. Stems: caudex absent; aerial flowering stems erect, solid, not fistulose, 0.3–1.5 dm, glandular or glabrous, occasionally glaucous. Leaves basal; petiole 0.5–2.5 cm, tomentose; blade broadly reniform to round, 0.5–2.5 × 0.5–2.5 cm, densely white-tomentose abaxially, floccose to glabrate and greenish adaxially, margins plane. Inflorescences cymose, open to diffuse, 5–20 × 5–20 cm; branches glandular or glabrous, occasionally glaucous; bracts 3, scalelike, 0.5–2 × 1–2.5 mm. Peduncles recurved to cernuous, curved or sometimes straight, slender, 0.3–1 cm, glandular or glabrous. Involucres campanulate, 2–3 × 2–3.5 mm, glandular or glabrous; teeth 5, erect, 0.5–1 mm. Flowers 2–3 mm; perianth white with greenish or reddish midribs, becoming rose or red, glabrous; tepals dimorphic, those of outer whorl oblong to oval, those of inner whorl oblanceolate; stamens included, 2–3 mm; filaments pilose proximally. Achenes brown, 3-gonous, 1.7–2 mm, glabrous.
Distribution
w United States.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Peduncles and involucres glandular; nw Arizona, ec California, n and c Nevada, se Oregon, w and ec Utah | Eriogonum nutans var. nutans |
| 1 | Peduncles and involucres glabrous; Elko County, Nevada, apparently introduced but not persisting in Nevada County, California | Eriogonum nutans var. glabratum |